磁性漆酚缩甲醛微球的制备与表征

The Preparation and Characteristics of Urushiol Formaldehyde Polymer Magnetic Microspheres

在共沉淀法合成磁流体的基础上,用悬浮缩聚法制备了磁性漆酚缩甲醛微球,并用X射线粉末衍射、透射电镜和热重分析等对微球进行结构表征。实验结果表明,Fe3O4磁流体的粒径为纳米量级,纳米Fe3O4粒子能够提高复合物的热性能。该微球粒径约1mm,是核壳结构,具有良好的耐溶剂性和耐热性。

The Fe3O4 - urushiol formaldehyde polymer （PUF） magnetic microspheres was synthesized via suspension condensation polymerization. The Fe3o4 nanoperfides primarily prepared by coprecipitation. The microspheres have been characterized by XRD,TEM and TG etc.. The preliminary results show that the microsphares are core - Shall structure with Fe3O4 as the magnetic core and PUF as the shall. The size of the microspheres is about 1 nun. The microspheres possess high stability to heat and solvent.